The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 1999
Filed:
Aug. 19, 1998
Applicant:
Inventors:
Bernhard Naber, Schwarzheide, DE;
Michael Gassan, Senftenberg, DE;
Thomas Schupp, Grunstadt, DE;
Sarbananda Chakrabarti, Mannheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521 495 ; 521163 ; 564 59 ; 564 78 ; 528 85 ; 25218226 ;
Abstract
In a process for reducing the primary amine content of a composition comprising at least one polyol, in which a composition comprising at least one polyol is admixed with at least one isocyanate which contains only secondary and/or tertiary, aliphatically bound isocyanate groups, isocyanate is added in an amount of up to 5% by weight, based on the total composition, and a polyol preparation is obtained.
Naber, Bernhard. (1999). Reduction of the amine content of recycled polyols (U.S. Patent No. 5968992). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5968992
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile